puts stdout "Sourcing design .magicrc for technology sky130 ..."

# Put grid on 0.005 pitch.  This is important, as some commands don't
# rescale the grid automatically (such as lef read?).

set scalefac [tech lambda]
if {[lindex $scalefac 1] < 2} {
    scalegrid 1 2
}

# drc off
drc euclidean on

# PDK
if { [info exists env(PDK_ROOT)] && $env(PDK_ROOT) ne {} } {
  ## found variable, set tcl PDK_ROOT var
  if {![file isdir $env(PDK_ROOT)]} {
    puts stderr "Warning: PDK_ROOT environment variable is set but path not found on the system."
  }
  set PDK_ROOT $env(PDK_ROOT)
} else {
  ## not existing or empty. 
  puts stderr "Warning: PDK_ROOT env. var. not found or empty, trying to find an open_pdks install"
}

## get process variant
if {[info exists env(PDK)]} {
  set PDK $env(PDK)
} else {
  set PDK sky130B
}
set PDKPATH ${PDK_ROOT}/${PDK}

# loading technology
tech load $PDKPATH/libs.tech/magic/sky130B.tech

# load device generator
source $PDKPATH/libs.tech/magic/sky130B.tcl

# load bind keys (optional)
# source $PDKPATH/libs.tech/magic/current/sky130B-BindKeys

# set units to lambda grid 
snap lambda

# set sky130 standard power, ground, and substrate names
set VDD VPWR
set GND VGND
set SUB VSUBS

# Allow override of type of magic library views used, "mag" or "maglef",
# from environment variable MAGTYPE

if {[catch {set MAGTYPE $env(MAGTYPE)}]} {
   set MAGTYPE maglef
}

# add path to reference cells
if {[file isdir ${PDKPATH}/libs.ref/${MAGTYPE}]} {
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_pr
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_io
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hd
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hdll
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hs
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hvl
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_lp
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_ls
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_ms
    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_osu_sc
} else {
    addpath ${PDKPATH}/libs.ref/sky130_fd_pr/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_io/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hd/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hdll/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hs/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hvl/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_lp/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_ls/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_ms/${MAGTYPE}
    addpath ${PDKPATH}/libs.ref/sky130_osu_sc/${MAGTYPE}
}

# add path to GDS cells

# add path to IP from catalog.  This procedure defined in the PDK script.
catch {magic::query_mylib_ip}
# add path to local IP from user design space.  Defined in the PDK script.
catch {magic::query_my_projects}

snap user
ext2spice scale off
ext2spice hierarchy on
ext2spice short resistor

add fulgor/fulgor_opamp